Magnetic separator having means for wiping and scraping the carrier disk



May24, 1949.

A. SCRIVENER 2,471,044

MAGNETIC SEPARATOR HAVING MEANS FOR WIPING AND SGRAPING THE CARRIER DISK Filed Oct. 26, 1945 2 Sheets-Sheet 1 May 24, 1949. SCRIVENER 2,471,044

MAGNETIC SEPARATOR HAVING MEANS FOR WIPING AND SCRAPING THE CARRIER DISK Filed Oct. 26, 1945 2 Sheets-Sheet 2 m a g Patented May 24,, 1949 UNITED STATES PATENT oF-Flca MAGNETIC SEPARATOR HAVING MEANS FOR WIPING AND SCRAPING THE CAR RIER DISK Arthur Scrivener, Birmingham, England Application October 26, 1945, Serial No. 624,882 In Great Britain November 11, 1944 1 This invention has reference to means for rotating and wiping or scraping a magnetic separator carrier disc, and has particular application to one form of the magnetic separator device described and claimed in my application Serial No. 554,120 dated September 14, 1944, now Patent No. 2,459,343, issued Jan. 18, 1949, where a series of magnetic plugs qr cylindrical cores are mounted in a carrier disc which disc is rotatably mounted within a restricted passageway in a fluid bath from which liquid it is desired to extract metallic particles.

The object of the present invention is to provide an improved means of rotating and of wiping or scraping the faces of the magnetic plugs or cores to which the ferrous particles adhere during the passage of a part of the disc through the liquid bath.

The invention consists of means for rotating and wiping or scraping a magnetic separator carrier disc characterised by a driving hub in peripheral contact with the disc, said hub or member carrying a wiper or scraper'adapted to contact the face or faces of the disc and thus to remove therefrom any adhesive particles magnetically attached thereto. a

In order that this invention may be clearly understood and readily carried into practice, reference may be had to the appended drawings upon which:

Figure 1 illustrates in sectional elevation a magnetic separator having rotary wipers or scrapers in accordance with the present invention.

Figure 2 is a vertical sectional elevation illustrating the wipers or scrapers on each side of the disc and Figure 3 is a fragmentary view illustrating the precise contact of the blades of the wipers or scrapers with the disc.

In the embodiment illustrated in the drawing a indicates the magnetic disc lightly mounted on bearings 11. and disposed so that the lower part of the said disc a functions in a restricted passage-way b forming part of a container 1) above which is mounted a centrifugal pump for pumping the fluid as may be desired. it in.-

dicates the hub suitably mounted in bearings 11 and having radial arms d of non-magnetic material each of which carries a rubber strip d (see Figure 3) which is presented obliquely to the face of the disc a. The hub d makes frictional contact with the periphery of the disc (1 3 Claims. (Cl. 209-229) 2 a chute. In operation the motor sets the hub d in rotation which consequently drives the magnetic disc a in the restricted passage-way b and it will be appreciated that the radial arms have a wiping eflect on the upper part of the disc to extract the metal articles which are displaced from the trough e into the chute e It will be noted the wiper or scraper blades 41 are brought into contact with the face or faces of the. carrier disc and of the magnetic plugs or cores located therein, and thus efiect a wiping or rotary sweeping operation which serves to remove the ferrous or other particles from the end faces of the magnets and to transfer these particles into the chute e and a reception bin clear of the liquid from which they have been extracted. It will also be noted that the chute e and trough e carry the motor d at e and the member 356 8 is pivoted at e so that the whole structure add may be lifted away from the disc. Further the weight of the motor ensures an efficient drive between it and a. ,f is a hood pivotedat f As previously stated the present invention is particularly applicable to the magnetic separator carrier disclosed in my application Serial No. 554,120 and which incorporates the restricted passage-way for the disc.

I claim:

1. A magnetic separator including a rotary magnetic disc and means for rotating and scraping the same, said means comprising, in combination, a rotary scraper having a hub in fricside of said disc, means for rotating said hub,

and is provided with a pulley d which is geared to the motor 11 by means of a belt d. e is a trough wherein the radial wipers function and e a trough for housing the lower part of said radially armed scraper and a chute connecting with said trough.

2. A magnetic separator including a rotary magnetic disc and means for rotating and scraping the same, said means comprising, in combination, a rotary scraper having a hub in frictional engagement with the periphery of the disc and two sets of radially extending arms mounted on said hub, one set bearing on each side of said disc, resilient scraping strips attached to said arms and presented at an inclination to the face of said disc, means for rotating said hub, a trough for housing the lower part of said radially armed scraper and a chute connecting with said trough.

3. A magnetic separator including a rotary magnetic disc and means for rotating andscrapfor housing the lower part of said radially armed Number scraper and a chute connecting with said trough. 9,610 a pivot for said chute. an extension on said trough, 208,163 a motor mounted on said extension and a mount- 10 2 in: for said hub on the upper part of said trough.

ARTHUR summons crmn The following references are of record in the iile of this patent:

UNITED STATES PATENTS Name Date Gardiner Mar. 8, 1853 Fitts Sept. 17, 1878 Hamilton Nov. 17, 1896 Parker Oct. 5, 1937 

